Material: Steel C45, not hardened. Pre-bored. Sprockets with 38 teeth and above are made of grey cast iron GG25. General dimensions: B1 = 15,8 mm, B3 = 79,6 mm, c = 2,5 mm, r3 = 26 mm. Other dimensions: See the table.
| No. of Teeth | 21 |
|---|---|
| da (mm) | 182 |
| d (mm) | 170,43 |
| ND (mm) | 130 |
| B (mm) | 30 |
| L (mm) | 100 |
| Weight (kg) | 13,56 |
